功能分级RC板的数值评价

Q4 Engineering

工程设计学报 Pub Date : 2014-09-10 DOI:10.1155/2014/768956

M. Mastali, Z. Abdollahnejad, M. G. Naghibdehi, M. Sharbatdar

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引用次数: 8

摘要

目前，纤维材料被广泛应用于扩大截面和使用功能级配混凝土等加固应用中。功能级配钢筋混凝土是一种可由不同纤维类型进行加固的多层钢筋混凝土。本研究的目的是通过进行分析模拟来解决功能级配混凝土材料的结构优势。为了达到这一目的，在本研究的第一阶段，对三种由钢和聚丙烯(PP)组成的功能级配混凝土进行了弯曲荷载下的试验测试。利用FEMIX软件进行反分析，得到了钢筋混凝土所用材料的性能。在获得材料特性后，为了评估所建议的板的性能，提出了一些其他情况，并在弯曲和剪切荷载下进行了数值评估。结果表明:增加全截面钢纤维含量可获得较好的抗剪和抗弯性能，而当纤维含量为1%时，功能梯度加筋板的抗剪和抗弯性能最佳。在第二阶段，对19块钢筋配筋功能级配RC板进行了模拟和评估，并考虑了其他一些未进行试验的情况。

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Numerical Evaluations of Functionally Graded RC Slabs

Nowadays, using fibrous materials is used widely in strengthening applications such as cross-section enlargement and using functionally graded reinforced concrete. Functionally graded reinforced concrete is used as multireinforced concrete layers that can be reinforced by different fiber types. The objective of this research was to address the structural benefits of functionally graded concrete materials by performing analytical simulations. In order to achieve this purpose, in the first stage of this study, three functionally graded reinforced concretes by steel and polypropylene (PP) were experimentally tested under flexural loading. Inverse analysis was applied to obtain the used material properties of reinforced concrete by FEMIX software. After obtaining the material properties, to assess the performance of proposed slabs, some other cases were proposed and numerically evaluated under flexural and shear loading. The results showed that increasing steel fiber in reinforced entire cross section led to achieve better shear and flexural performance while the best performance of reinforced functionally graded slabs was achieved for slab at 1% fiber content. In the second stage, nineteen reinforced functionally graded RC slabs with steel bars were simulated and assessed and some other cases were considered which were not experimentally tested.

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来源期刊

工程设计学报 Engineering-Engineering (miscellaneous)

CiteScore

0.60

自引率

0.00%

发文量

2447

审稿时长

14 weeks

期刊介绍： Chinese Journal of Engineering Design is a reputable journal published by Zhejiang University Press Co., Ltd. It was founded in December, 1994 as the first internationally cooperative journal in the area of engineering design research. Administrated by the Ministry of Education of China, it is sponsored by both Zhejiang University and Chinese Society of Mechanical Engineering. Zhejiang University Press Co., Ltd. is fully responsible for its bimonthly domestic and oversea publication. Its page is in A4 size. This journal is devoted to reporting most up-to-date achievements of engineering design researches and therefore, to promote the communications of academic researches and their applications to industry. Achievments of great creativity and practicablity are extraordinarily desirable. Aiming at supplying designers, developers and researchers of diversified technical artifacts with valuable references, its content covers all aspects of design theory and methodology, as well as its enabling environment, for instance, creative design, concurrent design, conceptual design, intelligent design, web-based design, reverse engineering design, industrial design, design optimization, tribology, design by biological analogy, virtual reality in design, structural analysis and design, design knowledge representation, design knowledge management, design decision-making systems, etc.